Public recordAt risk
Software health reportschema 0.18.0 · metrics 1.13.0 · 2026-07-21 14:43 UTC
MarlinFirmware / TMCStepper
A rapid reponse fork of TMCStepper for use by Marlin Firmware
MarlinFirmware/TMCStepper holds a health index of 32 out of 100, placing it in the At risk band. It scores highest on Sustainability & Governance (50/100) and lowest on Engineering Quality (18/100). It was last updated 93 days ago. A single contributor accounts for most of its recent work.
32
overall / 100Software health index
Metrics are grouped into weighted categories on one standardized 1–100 scale. Overall starts as their weighted mean; when public evidence triggers the High-Risk Jurisdiction Policy, the rating is adjusted and receives an At risk ceiling of 49. AI Readiness sits outside the overall score.
32
Excellent85-100Exemplary; meets essentially all checked criteria
Good70-84Healthy; minor gaps
Moderate50-69Acceptable with notable gaps; review recommended
At risk30-49Significant weaknesses; adoption warrants caution
Critical1-29Severe problems (abandoned, single-maintainer, no hygiene)
Score profile
Each axis is a category. The shape matters more than the average — a healthy subject fills the whole shape, while a spike-and-crater profile means strength in one dimension is masking risk in another.
Ownership
MarlinOrganization
1,547 followers14 public repossince Jan 2015
This repository is backed by an organization — shared, accountable stewardship that can outlive any single maintainer.
Metrics by category
Vitality
Is the project alive — is code being written and are releases shipping?
38
Development activity
20Critical
How it's scored
| 9.9/36 | Push recency — last push 93 days ago |
| 2.1/36 | Commit cadence — 3/52 weeks with commits |
| 7.6/18 | Commit volume — 6 commits in the last year |
| 0/10 | OpenSSF Scorecard: Maintained — 0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0 |
Inputs used
| commits_last_year | 6 |
| human_commit_share | — |
| days_since_last_push | 93 |
| active_weeks_last_year | 3 |
Release discipline
66Moderate
How it's scored
| 16.2/27 | Ships releases — 10 version tags (no GitHub releases) |
| 16.2/36 | Release recency — latest release 265 days ago |
| 27/27 | Release cadence — a release every ~37.4 days |
| 0/10 | OpenSSF Scorecard: Signed-Releases — no data |
Inputs used
| releases_count | 10 |
| latest_release_tag | v0.8.9 |
| releases_from_tags | yes |
| days_since_latest_release | 265 |
| mean_days_between_releases | 37.4 |
Excluded from scoring (no data or not applicable): OpenSSF Scorecard: Signed-Releases. Remaining weights renormalized.
Community & Adoption
Does the project have users, downloads, attention, and a welcoming setup for contributors?
21
Popularity & adoption
18Critical
How it's scored
| 11.3/60 | Stars — 6 stars |
| 6.5/25 | Forks — 7 forks |
| 0/15 | Watchers — 0 watchers |
Inputs used
| forks | 7 |
| stars | 6 |
| watchers | 0 |
| growth_state | unverified |
| growth_factor_pct | 100 |
| growth_unverified_reason | below_threshold |
Community health
25Critical
How it's scored
| 0/22.5 | README |
| 22.5/22.5 | License — recognized license (MIT) |
| 0/18 | CONTRIBUTING guide |
| 0/13.5 | Code of conduct |
| 0/7.2 | Issue template |
| 0/6.3 | PR template |
Inputs used
| has_readme | no |
| has_license | no |
| has_contributing | no |
| has_issue_template | no |
| has_code_of_conduct | no |
| has_pull_request_template | no |
Sustainability & Governance
Will the project survive its people — bus factor, responsiveness, who backs it, and package upkeep?
50
Maintainer resilience (bus factor)
33At risk
How it's scored
| 9/54 | Bus factor — 1 contributor(s) cover half of all commits |
| 4.6/22.5 | Commit distribution — top contributor authored 80% of commits |
| 13.5/13.5 | Contributor breadth — 20 contributors |
| 6/10 | OpenSSF Scorecard: Contributors — project has 2 contributing companies or organizations -- score normalized to 6 |
Inputs used
| bus_factor | 1 |
| contributors_sampled | 20 |
| top_contributor_share | 0.797 |
Issue & PR responsiveness
47At risk
How it's scored
| 0/46.8 | Issue resolution — no issues or no data |
| 23.5/38.3 | PR acceptance — 8/13 decided PRs merged |
| 1.5/15 | OpenSSF Scorecard: Code-Review — Found 5/30 approved changesets -- score normalized to 1 |
Inputs used
| merged_prs | 8 |
| open_issues | 0 |
| closed_issues | 0 |
| issue_closed_ratio | — |
| closed_unmerged_prs | 5 |
Excluded from scoring (no data or not applicable): Issue resolution. Remaining weights renormalized.
Ownership & stewardship
74Good
How it's scored
| 30/30 | Ownership backing — organization-owned |
| 0/20 | Verified domain |
| 22.9/25 | Owner reach — 1,547 followers of MarlinFirmware |
| 20.6/25 | Track record — 14 public repos, account ~11 yr old |
Inputs used
| followers | 1,547 |
| owner_type | Organization |
| is_verified | — |
| owner_login | MarlinFirmware |
| public_repos | 14 |
| account_age_days | 4,214 |
Engineering Quality
Are baseline engineering and documentation practices in place?
18
Engineering practices
6Critical
How it's scored
| 0/24 | CI workflows |
| 0/24 | Tests present |
| 0/16 | Linter config |
| 0/9.6 | Pre-commit hooks |
| 6.4/6.4 | .editorconfig |
| 0/20 | OpenSSF Scorecard: CI-Tests — 0 out of 6 merged PRs checked by a CI test -- score normalized to 0 |
Inputs used
| has_ci | no |
| has_tests | no |
| has_editorconfig | yes |
| has_linter_config | no |
| has_precommit_config | no |
Documentation
35At risk
How it's scored
| 0/30 | README |
| 25/25 | Documentation directory |
| 0/15 | Documentation / homepage site |
| 0/10 | Repository description |
| 0/10 | Topics |
| 10/10 | Wiki |
Inputs used
| topics | — |
| has_wiki | yes |
| homepage | — |
| has_readme | no |
| has_docs_dir | yes |
| has_description | no |
Security
Are visible security and supply-chain practices strong, without unresolved high-risk jurisdiction exposure?
28
Security posture
28Critical
How it's scored
| 7.5/7.5 | Binary-Artifacts — no binaries found in the repo |
| 0/7.5 | Branch-Protection — branch protection not enabled on development/release branches |
| 0/2.5 | CI-Tests — 0 out of 6 merged PRs checked by a CI test -- score normalized to 0 |
| 0/2.5 | CII-Best-Practices — no effort to earn an OpenSSF best practices badge detected |
| 0.8/7.5 | Code-Review — Found 5/30 approved changesets -- score normalized to 1 |
| 1.5/2.5 | Contributors — project has 2 contributing companies or organizations -- score normalized to 6 |
| 0/10 | Dangerous-Workflow — no data |
| 0/7.5 | Dependency-Update-Tool — no update tool detected |
| 0/5 | Fuzzing — project is not fuzzed |
| 2.5/2.5 | License — license file detected |
| 0/7.5 | Maintained — 0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0 |
| 0/5 | Packaging — no data |
| 0/5 | Pinned-Dependencies — no data |
| 0/5 | SAST — SAST tool is not run on all commits -- score normalized to 0 |
| 0/5 | Security-Policy — security policy file not detected |
| 0/7.5 | Signed-Releases — no data |
| 0/7.5 | Token-Permissions — no data |
| 7.5/7.5 | Vulnerabilities — 0 existing vulnerabilities detected |
Inputs used
| source | openssf_scorecard |
| checks_evaluated | 13 |
| scorecard_version | v5.5.0 |
| checks_inconclusive | 5 |
| scorecard_aggregate | 2.8 |
Excluded from scoring (no data or not applicable): dangerous_workflow, packaging, pinned_dependencies, signed_releases, token_permissions. Remaining weights renormalized.
AI Readiness
How well is the repo equipped to be developed and maintained with AI coding agents? An independent, experimental badge — weight 0.0, so it is surfaced on its own and does not affect the overall health score.
27
Agent context & guidance
1Critical
How it's scored
| 0/45 | Agent instructions — no CLAUDE.md / AGENTS.md / editor rules |
| 0/15 | Machine-readable docs (llms.txt) |
| 0/40 | Legible commit history — no data |
Inputs used
| has_llms_txt | no |
| legible_history_share | — |
| agent_instruction_files | — |
| agent_instruction_max_bytes | — |
Excluded from scoring (no data or not applicable): Legible commit history. Remaining weights renormalized.
Verify loop (build / test / typecheck)
15Critical
How it's scored
| 0/18 | One-command bootstrap |
| 0/22 | Automated tests |
| 0/11 | Lint / format config |
| 11/11 | Static type checking — C++ (statically typed) |
| 0/10 | Reproducible environment |
| 0/10 | Demonstrated agent practice — no data |
| 0/8 | Automated maintenance — no data |
| 0/10 | OpenSSF Scorecard: Pinned-Dependencies — no data |
Inputs used
| has_nix | no |
| has_tests | no |
| lockfiles | — |
| has_dockerfile | no |
| typed_language | yes |
| bootstrap_files | — |
| has_devcontainer | no |
| has_linter_config | no |
| typecheck_configs | — |
| agent_commit_share | — |
| toolchain_manifests | — |
| dependency_bot_commit_share | — |
Excluded from scoring (no data or not applicable): Demonstrated agent practice, Automated maintenance, OpenSSF Scorecard: Pinned-Dependencies. Remaining weights renormalized.
Code legibility for models
100Excellent
How it's scored
| 45/45 | Type-checkable code — C++ (statically typed) |
| 54.7/55 | Manageable file sizes — 2/386 source files over 60KB |
Inputs used
| primary_language | C++ |
| largest_source_bytes | 176,782 |
| source_files_sampled | 386 |
| oversized_source_files | 2 |
Machine-readable interfaces
40At risk
How it's scored
| 0/40 | API schema (OpenAPI/GraphQL/proto) |
| 0/20 | MCP server |
| 40/40 | Runnable examples — examples |
Inputs used
| example_dirs | examples |
| has_mcp_signal | no |
| api_schema_files | — |
Key facts
6GitHub stars
20contributors
6commits, last 12 months
93days since last push
10releases
1bus factor
0open issues
—package ecosystems
Data collection warnings
- Community profile unavailable
- GitHub dependency-graph SBOM unavailable (404); the dependency graph may be disabled for this repository
More detail
Star and fork history 6 ★ / 7 ⇿
6Stars
7Forks
When each star and fork was added, collected from GitHub and bucketed by day. Cumulative growth sits directly above the daily additions it is made of, so the two read against each other: steady organic accretion looks nothing like an abrupt, short-lived burst. Where that difference is measurable, it is reported as growth authenticity.
Each point covers 2 days.
OpenSSF Scorecard 2.8 / 10
2.8aggregate
Independent, tool-agnostic security assessment from the open-source OpenSSF Scorecard. Each check rewards a security practice, not a specific vendor's tool. Checks Scorecard could not determine are marked n/a and excluded from the security score (never counted as zero).
| 10 | Binary-Artifacts | no binaries found in the repo |
| 0 | Branch-Protection | branch protection not enabled on development/release branches |
| 0 | CI-Tests | 0 out of 6 merged PRs checked by a CI test -- score normalized to 0 |
| 0 | CII-Best-Practices | no effort to earn an OpenSSF best practices badge detected |
| 1 | Code-Review | Found 5/30 approved changesets -- score normalized to 1 |
| 6 | Contributors | project has 2 contributing companies or organizations -- score normalized to 6 |
| n/a | Dangerous-Workflow | no workflows found |
| 0 | Dependency-Update-Tool | no update tool detected |
| 0 | Fuzzing | project is not fuzzed |
| 10 | License | license file detected |
| 0 | Maintained | 0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0 |
| n/a | Packaging | packaging workflow not detected |
| n/a | Pinned-Dependencies | no dependencies found |
| 0 | SAST | SAST tool is not run on all commits -- score normalized to 0 |
| 0 | Security-Policy | security policy file not detected |
| n/a | Signed-Releases | no releases found |
| n/a | Token-Permissions | No tokens found |
| 10 | Vulnerabilities | 0 existing vulnerabilities detected |
All dependencies not collected
The resolved dependency set could not be collected for this report: GitHub dependency-graph SBOM unavailable (404); the dependency graph may be disabled for this repository
Raw JSON report machine-readable
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{
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{
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{
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{
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},
{
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{
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{
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"inputs": {
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{
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{
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{
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"note": null,
"notes": [],
"value": 25,
"inputs": {
"has_readme": false,
"has_license": false,
"has_contributing": false,
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"has_pull_request_template": false
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"components": [
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{
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{
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{
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},
{
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"value": 50,
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{
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{
"key": "openssf_scorecard_contributors",
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"max_points": 10
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]
},
{
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"notes": [
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"issue_closed_ratio": null,
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{
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{
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"points": 1.5,
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]
},
{
"key": "stewardship",
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"notes": [],
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{
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"points": 0,
"status": "missed",
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{
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{
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}
],
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{
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"has_tests": false,
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"has_linter_config": false,
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"components": [
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"key": "ci_workflows",
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"detail": null,
"points": 0,
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},
{
"key": "tests_present",
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{
"key": "editorconfig",
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]
},
{
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"code": "excluded_no_data",
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{
"code": "weights_renormalized",
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{
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{
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"code": "no_data",
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],
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},
{
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},
{
"key": "fuzzing",
"name": "Fuzzing",
"detail": "project is not fuzzed",
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"details": [],
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},
{
"key": "license",
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"details": [],
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{
"key": "maintained",
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"points": 0,
"status": "missed",
"details": [],
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{
"key": "packaging",
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"points": 0,
"status": "excluded",
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{
"code": "no_data",
"params": {}
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],
"max_points": 5
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{
"key": "pinned_dependencies",
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"status": "excluded",
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{
"code": "no_data",
"params": {}
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],
"max_points": 5
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{
"key": "sast",
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"points": 0,
"status": "missed",
"details": [],
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},
{
"key": "security_policy",
"name": "Security-Policy",
"detail": "security policy file not detected",
"points": 0,
"status": "missed",
"details": [],
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{
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{
"code": "no_data",
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],
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{
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"points": 0,
"status": "excluded",
"details": [
{
"code": "no_data",
"params": {}
}
],
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},
{
"key": "vulnerabilities",
"name": "Vulnerabilities",
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"points": 7.5,
"status": "met",
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"max_points": 7.5
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]
},
{
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"notes": [
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"code": "jurisdiction_evidence_limits",
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],
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"inputs": {
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"red_flag": false,
"exposures": [],
"policy_countries": [
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"review_only_matches": 0,
"assessed_self_published_locations": 6
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"components": [
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],
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]
}
],
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{
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"weight": 0,
"metrics": [
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"note": "Excluded from scoring (no data or not applicable): Legible commit history. Remaining weights renormalized.",
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"code": "excluded_no_data",
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"inputs": {
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"components": [
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"status": "missed",
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],
"description": "How well is the repo equipped to be developed and maintained with AI coding agents? An independent, experimental badge — weight 0.0, so it is surfaced on its own and does not affect the overall health score."
}
],
"metrics_version": "1.13.0"
},
"warnings": [
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"GitHub dependency-graph SBOM unavailable (404); the dependency graph may be disabled for this repository"
],
"report_type": "repository",
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"schema_version": "0.18.0",
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"full_name": "MarlinFirmware/TMCStepper",
"license_state": "standard",
"license_spdx": "MIT"
}Scores are signals, not warranties. They reflect publicly visible practices on GitHub — not a code audit, and not a security guarantee.
Missing data is excluded and weights renormalized, never scored as zero. Methodology is versioned and open: metrics v1.13.0, schema v0.18.0 — full methodology · metrics wiki.
How one result sits in the wider record: aggregate statistics.